rocket-chip/src/main/scala/diplomacy/package.scala

// See LICENSE.SiFive for license details.

import Chisel._
import chisel3.internal.sourceinfo.{SourceInfo, SourceLine, UnlocatableSourceInfo}

package object diplomacy
{
  def sourceLine(sourceInfo: SourceInfo, prefix: String = " (", suffix: String = ")") = sourceInfo match {
    case SourceLine(filename, line, col) => s"$prefix$filename:$line:$col$suffix"
    case _ => ""
  }

  def bitIndexes(x: BigInt, tail: Seq[Int] = Nil): Seq[Int] = {
    require (x >= 0)
    if (x == 0) {
      tail.reverse
    } else {
      val lowest = x.lowestSetBit
      bitIndexes(x.clearBit(lowest), lowest +: tail)
    }
  }
}